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Pesquisa : B01.650.940.800.575.912.250.859.937.374.500 [Categoria DeCS]
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  1 / 68 MEDLINE  
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[PMID]:28534444
[Au] Autor:Ma J; Sun H; Li CJ; Yang JZ; Chen FY; Zhang DM
[Ad] Endereço:a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China.
[Ti] Título:Chemical constituents from the stems of Hydrangea paniculata.
[So] Source:J Asian Nat Prod Res;19(6):564-571, 2017 Jun.
[Is] ISSN:1477-2213
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Further study on the constituents from the stems of Hydrangea paniculata Sieb resulted in isolation of two new compounds 1-2, including 1 monoterpenoid and 1 phenolic glycoside, along with 10 known compounds. Their structures were elucidated on the basis of spectroscopic data, including UV, IR, MS, and NMR experiments, along with chemical methods. At 10 µM, compounds 1 and 2 exhibited comparable activities with bicyclol in vitro assays for hepatoprotective activity against APAP-induced HepG2 cell damage.
[Mh] Termos MeSH primário: Glicosídeos/isolamento & purificação
Hydrangea/química
Monoterpenos/isolamento & purificação
Caules de Planta/química
[Mh] Termos MeSH secundário: Compostos de Bifenilo/farmacologia
Glicosídeos/química
Glicosídeos/farmacologia
Células Hep G2
Seres Humanos
Fígado/efeitos dos fármacos
Estrutura Molecular
Monoterpenos/química
Monoterpenos/farmacologia
Ressonância Magnética Nuclear Biomolecular
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biphenyl Compounds); 0 (Glycosides); 0 (Monoterpenes); 9734122TH2 (bicyclol)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170524
[St] Status:MEDLINE
[do] DOI:10.1080/10286020.2017.1329829


  2 / 68 MEDLINE  
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[PMID]:28367637
[Au] Autor:Ma J; Li CJ; Yang JZ; Li Y; Bao XQ; Chen NH; Zhang DM
[Ad] Endereço:a State Key Laboratory of Bioactive Substance and Function of Natural Medicines , Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China.
[Ti] Título:Three new coumarin glycosides from the stems of Hydrangea paniculata.
[So] Source:J Asian Nat Prod Res;19(4):320-326, 2017 Apr.
[Is] ISSN:1477-2213
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Three new coumarin glycosides (1-3), together with three known compounds (4-6), have been obtained from the stems of Hydrangea paniculata Sieb. Their structures were elucidated based on spectroscopic data and chemical evidence. In addition, compounds 1-3 were screened for their neuroprotective effects against serum deprivation-induced PC12 cell damage, hepatoprotective activities against DL-galactosamine-induced toxicity in HL-7702 cells and their ability to inhibit LPS-induced nitric oxide production in the murine microglia BV2 cell line, but they were inactive.
[Mh] Termos MeSH primário: Cumarínicos/isolamento & purificação
Glicosídeos/isolamento & purificação
Hydrangea/química
Fármacos Neuroprotetores/isolamento & purificação
[Mh] Termos MeSH secundário: Animais
Cumarínicos/química
Cumarínicos/farmacologia
Galactosamina/farmacologia
Glicosídeos/química
Glicosídeos/farmacologia
Lipopolissacarídeos/farmacologia
Fígado/efeitos dos fármacos
Camundongos
Microglia/efeitos dos fármacos
Estrutura Molecular
Fármacos Neuroprotetores/química
Fármacos Neuroprotetores/farmacologia
Óxido Nítrico/biossíntese
Células PC12
Caules de Planta/química
Ratos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (8-methoxyl umbelliferone 7-O-beta-D-glucopyranosyl (1-6)-O-beta-D-glucopyranoside); 0 (Coumarins); 0 (Glycosides); 0 (Lipopolysaccharides); 0 (Neuroprotective Agents); 0 (umbelliferone 7-O-beta-D-glucopyranosyl (1-2)-(beta-D-apiofuranosyl (1-6))-beta-D-glucopyranoside); 31C4KY9ESH (Nitric Oxide); 7535-00-4 (Galactosamine)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170412
[Lr] Data última revisão:
170412
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170404
[St] Status:MEDLINE
[do] DOI:10.1080/10286020.2017.1305958


  3 / 68 MEDLINE  
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[PMID]:28106809
[Au] Autor:Ma J; Li CJ; Yang JZ; Sun H; Zhang DM
[Ad] Endereço:State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. majie@imm.ac.cn.
[Ti] Título:New Phenylpropanoid and Coumarin Glycosides from the Stems of Hydrangea paniculata Sieb.
[So] Source:Molecules;22(1), 2017 Jan 18.
[Is] ISSN:1420-3049
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:A new phenylpropanoid glycoside ( ), and two new coumarin glycosides ( , ), together with two known compounds ( , ), have been isolated from the stems of Sieb. Their structures have been determined by spectroscopic and chemical methods. Furthermore, compound (50 µM) exhibited significant hepatoprotective activity against -acetyl-p-aminophenol (APAP)-induced HepG2 cell damage assays.
[Mh] Termos MeSH primário: Cumarínicos/química
Glicosídeos/química
Hydrangea/química
Propanóis/química
Substâncias Protetoras/química
[Mh] Termos MeSH secundário: Acetaminofen/antagonistas & inibidores
Acetaminofen/toxicidade
Antipiréticos/antagonistas & inibidores
Antipiréticos/toxicidade
Cumarínicos/isolamento & purificação
Cumarínicos/farmacologia
Glicosídeos/isolamento & purificação
Glicosídeos/farmacologia
Células Hep G2
Seres Humanos
Estrutura Molecular
Caules de Planta/química
Propanóis/isolamento & purificação
Propanóis/farmacologia
Substâncias Protetoras/isolamento & purificação
Substâncias Protetoras/farmacologia
Relação Estrutura-Atividade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antipyretics); 0 (Coumarins); 0 (Glycosides); 0 (Propanols); 0 (Protective Agents); 362O9ITL9D (Acetaminophen)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170515
[Lr] Data última revisão:
170515
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170121
[St] Status:MEDLINE


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[PMID]:27237788
[Au] Autor:Tokumoto H; Shimomura H; Hakamatsuka T; Ozeki Y; Goda Y
[Ad] Endereço:Division of Pharmacognosy, Phytochemistry, and Narcotics, National Institute of Health Sciences.
[Ti] Título:Detection of Nicotiana tabacum Leaf Contamination in Pharmaceutical Products.
[So] Source:Biol Pharm Bull;39(8):1263-72, 2016 Aug 01.
[Is] ISSN:1347-5215
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Nicotiana tabacum (Solanaceae) is the only species whose leaves can be legally marketed as tobacco according to the Japanese Tobacco Business Act. Nicotine, a major alkaloid produced by N. tabacum leaves, is regulated in pharmaceuticals by the Japanese Pharmaceutical Affairs Law. However, the use of N. tabacum stems as an excipient in pharmaceuticals is permitted, because these contained only a small amount of nicotine. Recently, several reports showed that a substantial amount of nicotine was detected in an OTC pharmaceutical product, in which N. tabacum stems were used as an excipient. Therefore, products containing N. tabacum stems could be contaminated with the leaf material. In the present study, we established a method to detect contamination of N. tabacum stem materials with its leaves, using microscopy to obtain standard reference microphotographs for identification. Cultivated N. tabacum stems and leaves, commercial cigarette leaves, and N. tabacum tissue imported as excipient material were used for preparing the microphotographs. The characteristic N. tabacum leaf structures found in the powdered fragments included: epidermal cells with sinuous anticlinal cell walls, hairs, mesophyll parenchyma with crystalized calcium oxalate (calciphytoliths), and branching vascular bundles derived from reticulate net-veins. A comparison of the microscopic characteristics of an OTC powder with those from the standard reference microphotographs was an effective method for N. tabacum stem and leaf identification. Thus, we evaluated the powdered pharmaceutical product containing N. tabacum stem tissue and Hydrangea serrata (Hydrangeaceae) leaf tissue as excipients, and confirmed the presence of N. tabacum leaf material.
[Mh] Termos MeSH primário: Contaminação de Medicamentos
Excipientes/análise
Folhas de Planta
Caules de Planta
Tabaco
[Mh] Termos MeSH secundário: Hydrangea/anatomia & histologia
Folhas de Planta/anatomia & histologia
Caules de Planta/anatomia & histologia
Tabaco/anatomia & histologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Excipients)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170201
[Lr] Data última revisão:
170201
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160531
[St] Status:MEDLINE
[do] DOI:10.1248/bpb.b15-01004


  5 / 68 MEDLINE  
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[PMID]:26895991
[Au] Autor:Jung CH; Kim Y; Kim MS; Lee S; Yoo SH
[Ad] Endereço:Department of Food Science & Technology, BK21+ Project Team, and Carbohydrate Bioproduct Research Center, Sejong University, Seoul, 143-747, South Korea.
[Ti] Título:The establishment of efficient bioconversion, extraction, and isolation processes for the production of phyllodulcin, a potential high intensity sweetener, from sweet hydrangea leaves (Hydrangea macrophylla Thunbergii).
[So] Source:Phytochem Anal;27(2):140-7, 2016 Mar-Apr.
[Is] ISSN:1099-1565
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Hydrangea leaf tea has been traditionally consumed in the far-east Asian countries and is favoured for its distinct minty-sweet taste. Phyllodulcin is identified as a key sweet-tasting compound; it is 400-800 times sweeter than sucrose. However, its extraction has not been well-documented. In an effort to optimise phyllodulcin production, pretreatment processes to accumulate phyllodulcin as a final metabolite in leaf tissue were studied, and an efficient process was established for the extraction and purification of phyllodulcin. METHODS: Phyllodulcin was structurally identified using an LC/MS system. Hydrangea leaves were processed by either hand rolling or mechanical blending, by exposing them at different drying temperatures (25 and 70°C), and even by inducing bioconversion in leaf tissue. The leaf powder was extracted with various solvents (methanol, ethanol, and water) by soaking at 25°C for 12 h, ultrasonication at 35°C for 1 h or accelerated solvent extraction (ASE). Extracts were purified with ion exchange resins and purified using preparative HPLC. RESULTS: Traditional hand rolling and drying at 70°C significantly increased phyllodulcin accumulation in the leaves. Meanwhile, more phyllodulcin was obtained from the leaves blended mechanically or converted enzymatically compared to traditionally processed ones (P < 0.05). Methanol and ethanol were superior to water as extraction media, and the greatest phyllodulcin yields obtained by ASE, soaking and ultrasonication were 21.28, 21.20 and 19.33 mg/g, respectively, when methanol was used. Highly pure phyllodulcin powder was obtained with a yield of 2.12%. CONCLUSIONS: This promising result would be beneficial to the industrial utilisation of phyllodulcin as a potential high-intensity sweetener.
[Mh] Termos MeSH primário: Hydrangea/metabolismo
Isocumarinas/metabolismo
Folhas de Planta/metabolismo
[Mh] Termos MeSH secundário: Cromatografia Líquida de Alta Pressão
Isocumarinas/isolamento & purificação
Espectrometria de Massas por Ionização por Electrospray
Espectrofotometria Ultravioleta
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Isocoumarins); 9DDW04R41V (phyllodulcin)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160221
[St] Status:MEDLINE
[do] DOI:10.1002/pca.2609


  6 / 68 MEDLINE  
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[PMID]:26660093
[Au] Autor:Chen H; Lu C; Jiang H; Peng J
[Ad] Endereço:College of Horticulture and landscape, Hunan Agriculture University, Changsha, 410128, People republic of China.
[Ti] Título:Global Transcriptome Analysis Reveals Distinct Aluminum-Tolerance Pathways in the Al-Accumulating Species Hydrangea macrophylla and Marker Identification.
[So] Source:PLoS One;10(12):e0144927, 2015.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Hydrangea (Hydrangea macrophylla) is a well known Al-accumulating plant, showing a high level of aluminum (Al) tolerance and accumulation. Although the physiological mechanisms for detoxification of Al and the roles of Al in blue hydrangea sepals have been reported, the molecular mechanisms of Al tolerance and accumulation are poorly understood in hydrangea. In this study, we conducted a genome-wide transcriptome analysis of Al-response genes in the roots and leaves of hydrangea by RNA sequencing (RNA-seq). The assembly of hydrangea transcriptome provides a rich source for gene identification and mining molecular markers, including single nucleotide polymorphism (SNP) and simple sequence repeat (SSR). A total of 401,215 transcripts with an average length of 810.77 bp were assembled, generating 256,127 unigenes. After annotation, 4,287 genes in the roots and 730 genes in the leaves were up-regulated by Al exposure, while 236 genes in the roots and 719 genes in the leaves were down-regulated, respectively. Many transporters, including MATE and ABC families, were involved in the process of Al-citrate complex transporting from the roots in hydrangea. A plasma membrane Al uptake transporter, Nramp aluminum transporter was up-regulated in roots and leaves under Al stress, indicating it may play an important role in Al tolerance by reducing the level of toxic Al. Although the exact roles of these candidate genes remain to be examined, these results provide a platform for further functional analysis of the process of detoxification of Al in hydrangea.
[Mh] Termos MeSH primário: Alumínio/toxicidade
Regulação para Baixo/efeitos dos fármacos
Hydrangea/metabolismo
Regulação para Cima/efeitos dos fármacos
[Mh] Termos MeSH secundário: Transportadores de Cassetes de Ligação de ATP/genética
Transportadores de Cassetes de Ligação de ATP/metabolismo
Alumínio/química
Ácido Cítrico/química
Complexos de Coordenação/química
Complexos de Coordenação/metabolismo
Bases de Dados Genéticas
Tolerância a Medicamentos
Perfilação da Expressão Gênica
Sequenciamento de Nucleotídeos em Larga Escala
Hydrangea/efeitos dos fármacos
Repetições de Microssatélites/genética
Folhas de Planta/efeitos dos fármacos
Folhas de Planta/metabolismo
Proteínas de Plantas/genética
Proteínas de Plantas/metabolismo
Raízes de Plantas/efeitos dos fármacos
Raízes de Plantas/metabolismo
Polimorfismo de Nucleotídeo Único
RNA de Plantas/química
Análise de Sequência de RNA
Transcriptoma/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Coordination Complexes); 0 (Plant Proteins); 0 (RNA, Plant); 2968PHW8QP (Citric Acid); CPD4NFA903 (Aluminum)
[Em] Mês de entrada:1607
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151215
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0144927


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[PMID]:26141718
[Au] Autor:Granados Mendoza C; Naumann J; Samain MS; Goetghebeur P; De Smet Y; Wanke S
[Ad] Endereço:Department of Biology, Research Group Spermatophytes, Ghent University, K.L. Ledeganckstraat 35, 9000, Ghent, Belgium. carolina.granados@st.ib.unam.mx.
[Ti] Título:A genome-scale mining strategy for recovering novel rapidly-evolving nuclear single-copy genes for addressing shallow-scale phylogenetics in Hydrangea.
[So] Source:BMC Evol Biol;15:132, 2015 Jul 04.
[Is] ISSN:1471-2148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Identifying orthologous molecular markers that potentially resolve relationships at and below species level has been a major challenge in molecular phylogenetics over the past decade. Non-coding regions of nuclear low- or single-copy markers are a vast and promising source of data providing information for shallow-scale phylogenetics. Taking advantage of public transcriptome data from the One Thousand Plant Project (1KP), we developed a genome-scale mining strategy for recovering potentially orthologous single-copy markers to address low-scale phylogenetics. Our marker design targeted the amplification of intron-rich nuclear single-copy regions from genomic DNA. As a case study we used Hydrangea section Cornidia, one of the most recently diverged lineages within Hydrangeaceae (Cornales), for comparing the performance of three of these nuclear markers to other "fast" evolving plastid markers. RESULTS: Our data mining and filtering process retrieved 73 putative nuclear single-copy genes which are potentially useful for resolving phylogenetic relationships at a range of divergence depths within Cornales. The three assessed nuclear markers showed considerably more phylogenetic signal for shallow evolutionary depths than conventional plastid markers. Phylogenetic signal in plastid markers increased less markedly towards deeper evolutionary divergences. Potential phylogenetic noise introduced by nuclear markers was lower than their respective phylogenetic signal across all evolutionary depths. In contrast, plastid markers showed higher probabilities for introducing phylogenetic noise than signal at the deepest evolutionary divergences within the tribe Hydrangeeae (Hydrangeaceae). CONCLUSIONS: While nuclear single-copy markers are highly informative for shallow evolutionary depths without introducing phylogenetic noise, plastid markers might be more appropriate for resolving deeper-level divergences such as the backbone relationships of the Hydrangeaceae family and deeper, at which non-coding parts of nuclear markers could potentially introduce noise due to elevated rates of evolution. The herein developed and demonstrated transcriptome based mining strategy has a great potential for the design of novel and highly informative nuclear markers for a range of plant groups and evolutionary scales.
[Mh] Termos MeSH primário: Genes de Plantas
Hydrangea/genética
[Mh] Termos MeSH secundário: Mineração de Dados
Evolução Molecular
Hydrangea/classificação
Filogenia
Plastídeos
Transcriptoma
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1511
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150705
[St] Status:MEDLINE
[do] DOI:10.1186/s12862-015-0416-z


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[PMID]:26006163
[Au] Autor:Oyama K; Yamada T; Ito D; Kondo T; Yoshida K
[Ad] Endereço:Research Center for Materials Science and ‡Graduate School of Information Science, Nagoya University , Chikusa, Nagoya 464-8601, Japan.
[Ti] Título:Metal Complex Pigment Involved in the Blue Sepal Color Development of Hydrangea.
[So] Source:J Agric Food Chem;63(35):7630-5, 2015 Sep 09.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Anthocyanins exhibit various vivid colors from red through purple to blue and are potential sources of food colorants. However, their usage is restricted because of their instability, especially as a blue colorant. The blue sepal color of Hydrangea macrophylla is due to a metal complex named "hydrangea-blue complex" composed of delphinidin 3-O-glucoside, 1, 5-O-caffeoylquinic acid, 2, and/or 5-O-p-coumaroylquinic acid, 3, as copigments, and Al(3+) in aqueous solution at approximately pH 4.0. However, the ratio of each component ins not stoichiometric, but is fluctuates within a certain range. The hydrangea-blue complex exists only in aqueous solution, exhibiting a stable blue color, but attempts at crystallization have failed; therefore, the structure remains obscure. To clarify the basis of the character of the hydrangea-blue pigment and to obtain its structural information, we studied the mixing conditions to reconstruct the same blue color as observed in the sepals. In highly concentrated sodium acetate buffer (6 M, pH 4.0) we could measure (1)H NMR of both the hydrangea-blue complex composed of 1 (5 mM), 2 (10 mM), and Al(3+) (10 mM) and a simple 1-Al(3+) complex. We also recorded the spectra of complexes composed with structurally different anthocyanins and copigments. Comparison of those signals indicated that in the hydrangea-blue complex 1 might be under equilibrium between chelating and nonchelating structures having an interaction with 2.
[Mh] Termos MeSH primário: Alumínio/química
Antocianinas/química
Flores/química
Hydrangea/química
[Mh] Termos MeSH secundário: Ácido Clorogênico/análogos & derivados
Ácido Clorogênico/química
Cor
Glucosídeos/química
Concentração de Íons de Hidrogênio
Estrutura Molecular
Ácido Quínico/análogos & derivados
Ácido Quínico/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anthocyanins); 0 (Glucosides); 0 (delphinidin 3-O-glucopyranoside); 058C04BGYI (Quinic Acid); 318ADP12RI (Chlorogenic Acid); CPD4NFA903 (Aluminum); O4601UER1Z (5'-O-caffeoylquinic acid)
[Em] Mês de entrada:1602
[Cu] Atualização por classe:150909
[Lr] Data última revisão:
150909
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150527
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.5b02368


  9 / 68 MEDLINE  
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[PMID]:26000565
[Au] Autor:Shi J; Li CJ; Yang JZ; Ma J; Li Y; Chen H; Zhang DM
[Ad] Endereço:a State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China.
[Ti] Título:Monoterpenes from the leaves of Hydrangea paniculata and their hepatoprotective activities.
[So] Source:J Asian Nat Prod Res;17(5):512-8, 2015 May.
[Is] ISSN:1477-2213
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Three new monoterpenes, hydrangines A-C (1-3), together with four known compounds, were isolated from the ethanol extract of the leaves of Hydrangea paniculata. The structures of new isolates were elucidated on the basis of extensive 1D and 2D NMR analyses, and their absolute configurations were determined by comparison of experimental and calculated electronic circular dichroism spectra. In in vitro bioassays at 10 µM, compounds 1-6 showed hepatoprotective activities against dl-galactosamine-induced toxicity in HL-7702 cells.
[Mh] Termos MeSH primário: Hydrangea/química
Fígado/efeitos dos fármacos
Monoterpenos/isolamento & purificação
Monoterpenos/farmacologia
[Mh] Termos MeSH secundário: Galactosamina
Estrutura Molecular
Monoterpenos/química
Ressonância Magnética Nuclear Biomolecular
Folhas de Planta/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Monoterpenes); 7535-00-4 (Galactosamine)
[Em] Mês de entrada:1510
[Cu] Atualização por classe:150713
[Lr] Data última revisão:
150713
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150523
[St] Status:MEDLINE
[do] DOI:10.1080/10286020.2015.1042871


  10 / 68 MEDLINE  
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[PMID]:25079869
[Au] Autor:Granados Mendoza C; Isnard S; Charles-Dominique T; Van den Bulcke J; Rowe NP; Van Acker J; Goetghebeur P; Samain MS
[Ad] Endereço:Department of Biology, Research Group Spermatophytes, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-367, Coyoacán 04510, Distrito Federal, Mexico carolina.granados@st.ib.unam
[Ti] Título:Bouldering: an alternative strategy to long-vertical climbing in root-climbing hortensias.
[So] Source:J R Soc Interface;11(99), 2014 10 06.
[Is] ISSN:1742-5662
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In the Neotropics, the genus Hydrangea of the popular ornamental hortensia family is represented by climbing species that strongly cling to their support surface by means of adhesive roots closely positioned along specialized anchoring stems. These root-climbing hortensia species belong to the nearly exclusive American Hydrangea section Cornidia and generally are long lianescent climbers that mostly flower and fructify high in the host tree canopy. The Mexican species Hydrangea seemannii, however, encompasses not only long lianescent climbers of large vertical rock walls and coniferous trees, but also short 'shrub-like' climbers on small rounded boulders. To investigate growth form plasticity in root-climbing hortensia species, we tested the hypothesis that support variability (e.g. differences in size and shape) promotes plastic responses observable at the mechanical, structural and anatomical level. Stem bending properties, architectural axis categorization, tissue organization and wood density were compared between boulder and long-vertical tree-climbers of H. seemannii. For comparison, the mechanical patterns of a closely related, strictly long-vertical tree-climbing species were investigated. Hydrangea seemannii has fine-tuned morphological, mechanical and anatomical responses to support variability suggesting the presence of two alternative root-climbing strategies that are optimized for their particular environmental conditions. Our results suggest that variation of some stem anatomical traits provides a buffering effect that regulates the mechanical and hydraulic demands of two distinct plant architectures. The adaptive value of observed plastic responses and the importance of considering growth form plasticity in evolutionary and conservation studies are discussed.
[Mh] Termos MeSH primário: Hydrangea/anatomia & histologia
Hydrangea/fisiologia
Movimento/fisiologia
Raízes de Plantas/fisiologia
[Mh] Termos MeSH secundário: Análise de Variância
Fenômenos Biomecânicos
México
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1510
[Cu] Atualização por classe:170525
[Lr] Data última revisão:
170525
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:140801
[St] Status:MEDLINE



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